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(No Model.) 2 sheets sheet 1.

J. LE M. BISHOP. VENTILATION OF ROOMS.

No. 465,708. Patented Dec. 22, 1891.

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aim ?ZW (No Model.) 2 Sheets--Sheet 2. J. LE M. BISHOP. VENTILATION 0F ROOMS.

Patented Dec. 22, 1891.

flu/adorn Witnesses dmw WU A 4 r UNITED STATES PATENT O EIcE.

JOHN LE MARCHANT BISHOP, OF MANCHESTER, ENGLAND.

VENTlLATlON OF ROOMS.

SPECIFICATION forming part of Letters Patent No. 465,708, dated December 22, 1891. Application filed March 17, 1891. Serial No. 385,435. (No model.) Patented in England July 21, 1890, No. 11,344.

To all whom it may concern:

Be it known that 1, JOHN LE MAROHANT BISHOP, a subject of the Queen of Great Britain, and a resident of 100 Mosley Street, in the city and county of ManchestenEngland, have invented certain new and useful Improvements Relating to the Ventilation of Rooms, (for which I have obtained a patent in Great Britain, No. 11,344, and dated July 21, 1890,) of which the following is a full, clear, and exact-specification.

My present invention relates to improvements applicable to the ventilation of rooms; and the object of my improvements is to devise a simple and useful means whereby the lateral air-currents entering a room between the door or window and its jambs or frame or casement may be conducted vertically and permitted to escape into the room in an upward direction at a sufficient elevation to protect any occupant of said room from the inconvenience and risk commonly incurred by direct exposure to said currents where doors and casements are arranged in the ordinary manner, and also to utilize said currents for ventilating the room. I attain the said object by employing a specially-formed appliance, illustrated in the accompanying drawings, in which Figure 1 is an elevation of a door and frame fitted with my improved appliance. Fig. 2 is a cross-sectional elevation taken on line a a of said Fig. 1. Fig. 3 is an elevation of a modification of my said invention applied to a door and door-frame. Fig. 4 is an enlarged cross-sectional view of my improved appliance fitted or. secured to the jamb and to the door at the hinged side thereof. Fig. 4* is an enlarged sectional plan, and Fig. 4: an elevation, of a modification of my appliance where the same is applied to the hinged edge of a door; and Fig. 5 is an enlarged cross-sectional view of my appliance secured to the door, at the opening edge thereof. Fig. 6 is a crosssectional elevation of myimproved appliance secured to the bottom edge of a door. Fig. 7 is a plan of my said appliance when secured to the top of the door, and Fig. 8 is an elevation of a window sash and frame or casem nt arranged with my'improved appliance.

Similar letters..- refer to similar {rts throughout the several views.

The space or crevice between each vertical edge of the door B and its jambs C, Fig. 1, and each side of the lower sash D of the window and its frame or casement F, Fig. 8, is covered with the appliance H, which is especially constructed of suitable thin steel or metal made to the section shown at Figs. 4, 5, and 6. The flange h of said appliance H is nailed, screwed, or secured in any suitable manner to the jamb C, and the flange h is in like manner secured to the door B, at the hinged edge thereof, and in most cases it is preferable that the said flanges h and it should be hinged to the rest of the appliance H, as shown at Figs. 4; and a At the opening edge of door B the appliance H has its flange 71 secured to the door, and its flange 72/ receives a packing of felt, rubber, or other soft material 7L3, so that when the said door is closed the said packing prevents the currents of air escaping into the room laterally;

but the appliance II will conduct the same upward. Each appliance H may have its lower end closed, and its top end may be contracted or reduced in size and may receive a suitable valve or hinged cover h in order to adjust the amount of air-currents escaping into the room, as shown at Fig.1.

In Fig. 3 the appliance H extends all round the crevice of the door B, in which case the cross-section of the portion at the bottom of door B is made in shape shown at Fig. 6. The appliance H on the opening edge of door B is arranged to extend round the knob or lock 1), as shown at Fig. 3, and the portion of said appliance H which extends along the upper edge of door B is perforated at its top in order to allow the air-currents to escape into the room, as shown at Fig. 7. The appliance H is hinged at the hinged side of door, as shown at Figs. 1 and 4 There my improved appliance is applied to a window such as shown atD, Fig. 8, the flange h may be fastened to the frame or casement F, or the flange k may be fastened to the sash D, and the said appliance H extends to the upper edge, or thereabout, of lower sash, and the flange it or h receives a padding of rubber, felt, or other like material in the manner shown at h Fig. 5, to prevent the escape of lateral currents between the sash and said appliances, as will be well understood.

h represents straps or hinges for connecting the vertical and horizontal appliances together in such a mannersa-s to permit the opening and closing of the door. These hinges may, however, be dispensed with if the appliances are suiiiciently flexible.

I am aware that prior to my presentinvention doors have been described with circular hollow parts between the jambs and the edges of said doors for-the purpose of conducting currents of air or preventing drafts, and also that padding has been used and nailed or otherwise secured to the jambs and doors, and also that the frame-work or casement of windows have been padded between the sashes and said frames for the purpose of preventing draft or lateral currents of air. I therefore do not claim any such principle, broadly; but

WVhat I do claim as my invention, and desire to secure by Letters Patent, is-

1. In combination with a door or Window and with the frame or casing therefor, channel-sections arranged to cover the space between the door or window and the frame and to intercept the laterally-passing air-currents and conduct the same, in the manner and for the purposes set' forth.

2. In combination with a door and its frame, channel-sections having curved and flanged portions arranged to cover the space between the door and frame and to intercept the laterally-passing air-currents and conduct the same, in the manner and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 31st day of January, 1891.

JOHN LE MARCHANT BISHOP.

Witnesses:

ARTHUR C. HALL, ARTHUR H. POPE. 

